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CIK 0001297184 · Large accelerated filer

Amphastar Pharmaceuticals, Inc.

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Ticker
AMPH
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Entity type
operating
EIN
330702205
Phone
909-980-9484
Business address
11570 SIXTH STREET, RANCHO CUCAMONGA, CA, 91730
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$1,232,854
in 4 filings, $918K under 10b5-1 plans

Net −$1,232,854. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. PETERS WILLIAM J −$918K CFO, EVP & TREASURER sold 16% of stake
  2. Zhou Rong −$315K SENIOR EVP, PRODUCTION CENTER sold 7% of stake
Date Insider Transaction Shares Price Value Owned after
2016-06-09 Petersen Floyd F. Director Grant or award · Stock Option (right to buy) +25,827 25,827
2016-06-09 Lee Howard Director Grant or award +6,086 114,527
2016-06-09 Lee Howard Director Grant or award · Stock Option (right to buy) +25,827 25,827
2016-06-09 Koo Richard Director Grant or award +6,086 229,494
2016-06-09 Koo Richard Director Grant or award · Stock Option (right to buy) +25,827 25,827
2016-06-09 Shandell Jason B. President Sale −9,904 $16.43 $163K 216,610
2016-06-02 PETERS WILLIAM J CFO, SVP & Treasurer Sale −2,297 $16.00 $37K 66,949
2016-05-27 Lee Howard Director Shares withheld for taxes −1,460 $15.75 $23K 108,441
2016-05-25 Shandell Jason B. President Sale −1,074 $15.60 $17K 226,514
2016-05-18 Gerst Diane G. EVP, QA & Regulatory Affairs Sale −1,427 $13.97 $20K 28,649
2016-05-17 PRINS RICHARD K Director Sale −3,200 $13.56 $43K 23,000
2016-04-21 PETERS WILLIAM J CFO, SVP & Treasurer Shares withheld for taxes −1,383 $13.05 $18K 69,246
2016-04-19 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise +5,607 $10.48 $59K 35,683
2016-04-19 Gerst Diane G. EVP, QA & Regulatory Affairs Sale −5,607 $13.04 $73K 30,076
2016-04-19 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise · Employee Stock Option (right to buy) −5,607 6,183
2016-04-18 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise +8,210 $10.48 $86K 39,713
2016-04-18 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise +6,000 $11.41 $68K 45,713
2016-04-18 Gerst Diane G. EVP, QA & Regulatory Affairs Sale −15,637 $12.83 $201K 30,076
2016-04-18 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise · Employee Stock Option (right to buy) −6,000 9,000
2016-04-18 Gerst Diane G. EVP, QA & Regulatory Affairs Option exercise · Employee Stock Option (right to buy) −8,210 11,790

Page 69 of 81 · 1,602 trades